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If the curves ax^(2)+4xy+2y^(2)+x+y+5=0a...

If the curves `ax^(2)+4xy+2y^(2)+x+y+5=0andax^(2)+6xy+5y^(2)+2x+3y+8=0` intersect at four concyclic points, then the value of a is

A

4

B

`-4`

C

6

D

`-6`

Text Solution

Verified by Experts

The correct Answer is:
B
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